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137 records (took 0.023 seconds)

    81.
    发明专利
    未知

    公开(公告)号：DK170826B1

    公开(公告)日：1996-01-29

    申请号：DK407888

    申请日：1988-07-21

    Applicant: BASF AG

    Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMANN HEINRICH

    IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

    Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

    82.
    发明专利
    未知

    公开(公告)号：FI92083B

    公开(公告)日：1994-06-15

    申请号：FI883504

    申请日：1988-07-25

    Applicant: BASF AG

    Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMANN HEINRICH

    IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

    Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

    PRINTABILITY OF PAPER
    83.
    发明专利
    PRINTABILITY OF PAPER 未知

    公开(公告)号：CA1327146C

    公开(公告)日：1994-02-22

    申请号：CA576783

    申请日：1988-09-08

    Applicant: BASF AG

    Inventor： AUHORN WERNER ,  DEGEN HANS-JUERGEN ,  HOEHR LOTHAR ,  RIEBELING ULRICH

    IPC: D21H19/36 ,  D21H19/44 ,  D21H19/54 ,  D21H19/58

    Abstract: The printability of paper is improved by applying an aqueous coating agent consisting of a) 100 parts by weight of a finely divided pigment, b) from 5 to 70 parts by weight, based on solids, of a cationic aqueous polymer dispersion of a paper size and c) from 0.01 to 10 parts by weight of a surfactant which interferes with the formation of the surface size and/ or of a polymeric dispersant in an amount of from 0.5 to 4 g/m2 to one or both surfaces of the paper and drying the coated paper.

    84.
    发明专利
    未知

    公开(公告)号：NO172402C

    公开(公告)日：1993-07-14

    申请号：NO883274

    申请日：1988-07-22

    Applicant: BASF AG

    Inventor： STANGE ANDREAS ,  DEGEN HANS-JUERGEN ,  AUHORN WERNER ,  WEBERNDOERFER VOLKMAR ,  KROENER MICHAEL ,  HARTMAN HEINRICH

    IPC: D21H17/34 ,  D21H17/28 ,  D21H17/45 ,  D21H21/18

    Abstract: In the process, an agent which confers dry strength and can be obtained by mixing enzymatically degraded starch having a viscosity of 20 to 2,000 m Pa.s (determined on a 7.5% strength solution in water at 45 DEG C) with cationic polymers which contain, in copolymerised form,… a) diallyldimethylammonium chloride… b) N-vinylamine or… c) optionally substituted N-vinylimidazolines as characteristic monomers, the K-value of the cationic polymers being at least 30, is added to the paper stock and the stock is dewartered, during sheet formation.

    85.
    发明专利
    未知

    公开(公告)号：DE3876192D1

    公开(公告)日：1993-01-07

    申请号：DE3876192

    申请日：1988-09-09

    Applicant: BASF AG

    Inventor： AUHORN WERNER ,  DEGEN HANS-JUERGEN DR ,  HOEHR LOTHAR DR ,  RIEBELING ULRICH

    IPC: D21H19/36 ,  D21H19/44 ,  D21H19/54 ,  D21H19/58

    Abstract: The printability of paper is improved by appln. to 1 or both sides, at a rate of 0.5-4 g/square m, of a compsn. contg. (a) 100 pts. wt. of finely divided pigment, (b) 5-70 pts., as polymer, of a cationic aq. polymer dispersion of a paper size, where the Tg of the polymer is 5-80 deg C, and (c) 0.01-10 pts. of a surface-active cpd. and/or a polymeric dispersant which prevents surface sizing, followed by drying of the paper.

    87.
    发明专利
    未知

    公开(公告)号：NO166736C

    公开(公告)日：1991-08-28

    申请号：NO860919

    申请日：1986-03-11

    Applicant: BASF AG

    Inventor： HIRSCH GUENTER ,  AUHORN WERNER

    IPC: C08F220/04 ,  C08F220/10 ,  C08F220/00 ,  C08F220/12 ,  C09K23/00 ,  D21H17/37 ,  D21H17/67 ,  D21H17/69 ,  D21H17/53

    Abstract: Aqueous pigment suspensions which are added to the stock suspension during papermaking and contain, as a dispersant, from 0.1 to 2% by weight, based on the pigment, of a copolymer which contains, as copolymerized units, (a) from 40 to 95% by weight of an ester of (meth)acrylic acid with a saturated monohydric C1-C8-alcohol or with a saturated dihydric C2-C4-alcohol and (b) from 60 to 5% by weight of an ethylenically unsaturated C3-C5-carboxylic acid and has a K value of from 10 to 65 (determined according to H. Fikentscher in 1% aqueous solution in the form of the ammonium salt at pH 9 and at 20 DEG C.), their preparation and their use.

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